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The antioxidant properties of lycopene concentrate extracted from tomato paste
Author(s) -
Wenli Yu,
Yaping Zhao,
Zhen Xue,
Hui Jin,
Dapu Wang
Publication year - 2001
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-001-0328-6
Subject(s) - chemistry , pyrogallol , superoxide , radical , lipid peroxidation , autoxidation , antioxidant , singlet oxygen , lycopene , hydroxyl radical , chemiluminescence , photochemistry , nuclear chemistry , organic chemistry , oxygen , enzyme
Lycopene concentrate (LC) containing 50 wt% lycopene was extracted from tomato paste. The antioxidant properties of LC were evaluated by means of chemiluminescence in four models. The four models were superoxide anions generated from pyrogallol autoxidation, hydroxyl radicals from Fenton reaction, singlet oxygens from OH − −NaClO−H 2 O 2 , and lipid peroxidation from 2,2′‐azobis(2‐amidinopropane)dihydrochloride‐induced γ‐linolenic acid. LC was an effective scavenger toward superoxide anions, hydroxyl radicals, and singlet oxygens, and also it could effectively reduce lipid peroxidation. The 50% efficient concentrations (EC 50 ) toward superoxide anions, hydroxyl radicals, lipid peroxidation and singlet oxygen were 0.75, 0.05, 0.1, and 1 mg/mL, respectively. In addition, changes of antioxidant behaviors with time were investigated. The time requirements of LC for effectively scavenging superoxide anions, hydroxyl radicals, and inhibiting lipid peroxidation were not higher than 6, 6, and 18 s, respectively.